Display screen or portion thereof with icon



The sole FIGURE is a front view of a display screen or portion thereof with icon showing my new design.

The broken line representation of the display screen or portion thereof forms no part of the claimed design.

Example devices having display screens on which the various icons of the claimed design may be provided include one or more of computers, tablets, smart phones, control interfaces, gauges and measurement instruments. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 